部分标准内容：
ICS21.040.10
中华人民共和国G家标准
GB/T10922—2006
代替GB/T10922-1989
55°非密封管螺纹量规
Gauges for pipe threads with 55 degree thread angle where pressuretight joints are not made on the threads(ISO 228-2:1987,Pipe threads where pressure-tight joints are not madeon the threads-Part 2: Verification by means of limit gauges, MOD)2006-02-05发布
中华人民共和国G家质量监督检...................
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